After update the option to choose fingerprint for unlock is simply gone. Halleluja. wtf?
Did you install the Android 10 update with the manual installation method or via OTA?
Answering that question will not help you immediately, but from what I read so far, the manual upgrade has led to some problems that donât seem to happen OTA.
Which would be an indicator to tell people not to use the manual upgrade method for now.
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hm, not sure what the different methods are.
i checked in the system prefs if the update is available, it was, i downloaded and installed.
What you described was an OTA (over the air) update.
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Ok, then my assumption was wrong and these problems seem unrelated to the update method.
Hi kosmar,
the option is not listed under Settings > Security > Screen lock, thatâs true. But under âFingerprintâ right below it says
In addition to unlocking your phone, you can also use your fingerprint to authorise purchases and app access.
Hope this helps.
Best wishes,
Thomas
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I know, but how do you set it up to enjoy those promised features?
âlearn moreâ doesnât work either, does is?
IMHO it just works once you have set up one or more fingers.
I have five fingers already. Will try.
deleted one, reset one. no change.
does it work with yours?
had to delete all. Still canât select it as method, but it works. very misleading, as I now cannot remove it as unlock method either.
I had an issue where the fingerprint would not work for the lock screen but did for all the apps, so the phone hasnât forgotten about the fingerprints and the fingerprint sensor was still working.
After rebooting it started working again.
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Similiar for me except rebooting doesnât fix the problem. I updated a few days ago (OTA) and Iâm pretty sure it still worked at some point today and yesterday. Now it wonât, deleted my fingerprints and added them again but on the lockscreen the fingerprint sensor wonât work (or even trigger a vibration). Any options left to debug this issue?
Now it works again - I removed all fingerprints again, rebooted, added fingerprints. 
It looks like itâs important to reboot without any registered fingerprints in the settings.
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And since yesterday fingerprint unlock is gone once more. I didnât try to restore functionality yet. Yes, itâs annoying. 
I experience the same problem. Fingerprints are still stored and functioned well until recently. But now they wonât do the trick for unlocking the phone. Also for me: deleting the prints, rebooting and re-registering worked, but after a while they stop workingâŚ
My guess is, that it has something to do with failed attempts: if you have the phone in your pocket it may try to unlock often when it slightly moves inside. Is it possible that there is not only a counter for each individual attempt to unlock, but also an overall count?
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I donât believe thereâs this type of counter. But every reboot disables fingerprint unlocking for me, even âcontrolledâ manual reboots.
but after a while they stop working
Android 10 on the Fairphone tends to crash from time to time (causing a reboot). This is a known issue right now. Does this might be what you experienced?
Since the last update, this problem is gone with my FP3+.
Only that the fingerprint sensor often does not detect properly and I have to unlock via different mode.
When did this update happen? Didnât got any update in November for my FP3 (non-plus).
I was referring to the last one a few weeks ago, I believe it was Oct 22?
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Thx, I just wanted to make sure there wasnât a FP3+ exclusive update already I missed (By the way, hereâs a list of all updates: â FP3 OS updates - changelog & OTA links). October update didnât fix anything for me.